Testing RC Release Publishing

The workflow should automatically build the release version and upload the files here.
Next, the workflow should try to publish the same artifacts to PyPI proper.
This must fail, because I have not configured credentials for uploading to PyPI proper.

Testing Dev Release Publishing

The workflow should automatically build the release version and upload the files here.
There should be no attempt to publish to a PyPI repository.

Testing Alpha Release Publishing

The workflow should automatically build the release version and upload the files here.
Next, the workflow should publish the same artifacts to Test PyPI.
https://test.pypi.org/project/pypyodbc/#history